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参数资料
| 型号： | PS200-I/SS |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO20 |
| 封装： | 5.30 MM, PLASTIC, MO-150, SSOP-20 |
| 文件页数： | 4/36页 |
| 文件大小： | 537K |
| 代理商： | PS200-I/SS |
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PS200
DS21891B-page 10
2005 Microchip Technology Inc.
TABLE 2-1:
PS200 LITHIUM CONFIGURABLE PARAMETERS
Step 1 – Configuration
Parameter Name
#
Bytes
Lower
Limit
Upper
Limit
Typical
Value
Description
MfgName
—
N/A
Microchip
ASCII value.
DevName
—
N/A
PS200
ASCII value.
SeriesCells
1
255
4
Number of series connected cells in the battery pack.
Capacity (mAh)
2
0
65535
2000
Full-charge capacity of the battery pack.
PWMFreq
1
7
83
15
LUT value which determines the PWM frequency.
Step 2 – Charging Limits
Parameter Name
#
Bytes
Lower
Limit
Upper
Limit
Typical
Value
Description
PCVMin (mV)
2
0
65535
2500
Minimum cell voltage required to enable charging with precharge
conditions.
PCVMax (mV)
2
0
65535
3000
Maximum cell voltage required to enable charging with
precharge conditions.
PCCurrent (mA)
2
0
65535
200
Charging current during precharge.
PCTempMin
1
0
255
50
Minimum temperature required to enable charging with
precharge conditions.
PCTempMin value = (temperature °C * 10 + 200)/4;
so typical value of 50 = 0°C.
PCTempMax
1
0
255
175
Maximum temperature required to enable charging with
precharge conditions.
PCTempMax value = (temperature °C * 10 + 200)/4;
so typical value of 175 = 50°C.
PCTime (min)
1
0
255
60
Duration of precharge.
CRVTarg (mV)
2
0
65535
4200
Target cell voltage in current regulation. This is set to the fully
charged voltage of one cell, typically, as specified by the cell
manufacturer.
CRCurrent (mA)
2
0
65536
2000
Charging current during current regulation.
CRTimeMax (min)
1
0
255
90
Current regulation time limit.
VRVrech (mV)
2
0
65536
3780
Voltage regulation recharge cell voltage. Charger will
automatically begin charging if cell voltage of pack falls below
SeriesCells * VRVrech.
VRIMin (mA)
2
0
65536
150
Voltage regulation fully charged current. This is the value of the
taper current or IMIN which will determine that the battery is fully
charged.
VRTimeMax (min)
1
0
255
90
Voltage regulation time limit.
TempMax
1
0
255
200
Maximum temperature required to enable charging during
current regulation and voltage regulation.
TempMax value = (temperature °C * 10 + 200)/4;
so typical value of 200 = 60°C.
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